Most people know about the most common tools and programs that are available, if you are looking for a free and open source alternative there are many options, this can be hard to find if you are not sure exactly what a piece of software is called.
The site Alternative to has a comprehensive set of resources to suggest alternatives to common tools, applications and software. Well worth checking out.
The instance of BBB I am using is hosted by Faircam, we have access to both the current stable release,but also the alpha release. This allows for testing of the software. I am part of the BBB developer google group, so can report issues and have just joined the Users' list to discuss there too.
Overleaf Online LaTeX Editor testing
With Overleaf, users are given access to new features to try out, so right now they are introducing a new editor, so the options are the Beta editor, Normal editor and the usual Rich text editor. As I prefer to just write in LaTeX, then I am using the normal editor, but also switching between that and the new test editor and can fill in a simple online form to give feedback on new features.